html, body {
    height: 100%;
    font-size: 14px;
    color: #525252;
    font-family: NotoSansHans-Regular,AvenirNext-Regular,arial,Hiragino Sans GB,"Microsoft Yahei","Hiragino Sans GB","WenQuanYi Micro Hei",sans-serif;
    background: #f0f2f5;
}